Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2021

Fair Value Disclosures [Abstract]

Summary of Financial Assets Measured at Fair Value On Recurring Basis by Level Within Fair Value Hierarchy

The following tables summarize the Company’s financial assets measured at fair value on a recurring basis by level within the fair value hierarchy (in thousands):

		March 31, 2021
	Valuation Hierarchy	Amortized Costs		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Aggregate Fair Value
Assets:
Cash equivalents:
Money market funds	Level 1	$	50,147	$	—	$	—		$	50,147
Short-term investments:
Commercial paper	Level 2		13,286		—		—			13,286
Corporate debt	Level 2		10,416		—		(6	)		10,410
Yankee debt securities	Level 2		2,023		—		(2	)		2,021
Total cash equivalents and   short-term investments		$	75,872	$	—	$	(8	)	$	75,864

		December 31, 2020
	Valuation Hierarchy	Amortized Costs		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses		Aggregate Fair Value
Assets:
Cash equivalents:
Money market funds	Level 1	$	56,056	$	—	$	—	$	56,056
Short-term investments:
U.S. Treasury securities	Level 1		14,999		1		—		15,000
Corporate debt	Level 2		4,898		—		—		4,898
Total cash equivalents and   short-term investments		$	75,953	$	1	$	—	$	75,954